Casing for drive-chains.



. WEISS.

CASING FOR DRIVE CHAINS.

APPLxcATloN FILED 1,111.11. 1918.

2 SHEETS-SHEET l.

Patented May 14,

.Vl/Innf//ffl/frflainfin M m m C. R. WEISS.

@Asme FOR DRn/E CHAINS.

APPLICATION FILED JAN. Il. 1918.

l ,266, l 87 Patented May 14, 1918.

2 SHEETS-SHEET 2.

l. .i LES B. WEISS, F PHILADELPHIA, PENNSYLVANA, ASSIGNOB TO LINK-BELTCOMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. l

.CASING FOB DRIVE-CHAINS.

incense.

Speeication of Letters Patent.

lPatented May Mi, 191%.

adelphia, Pennsylvania, have invented cer tain improvements, in Casingsfor Drive- Chains, of which the following is a speciication.

My invention relates to certain improvements in casings for inclosingdriving chains and their sprocket wheels which require constantlubrication. The invention can also be used for inclosing gearing thatrequires constant lubrication.

One object of my invention is to provide a casing made in two or moreparts and which can be assembled after the chain is in place on thesprocket wheels and can be readily removed when access to the chain isdesired.

A further object of the invention isto design the casing so that the oilthat is splashed will be retained in the casing and will not leakthrough the casing at the joints.

In the accompanying drawings:

Figure 1 is a side viewof my improved chain drive casing;

Fig. 2 is a longitudinal sectional view ci the casing;`-

Fig. 3 is a transverse sectional view on the line 3 3, Fig. V1;

Fig. 4 is a transverse sectional view on the v line @-4, Fig. 1;

Fig. 5 is a fragmentary sectional plan view on the line 5-5, Fig. 1;

Fig. 6 is a detached perspective view of the baise section of thecasing;

Fig. 7 is a detached pers ective view of the u per section of the casingwith the iid detac ed; and

Figs. 8 and 9 are detached perspective views o' the plates which aremounted on the yshaft carrying the sprocket wheels.

The casing can be made of any size, depending upon the diameters of the,sprocket wheels and the length of the chain. In the drawings, l haveshown the drive chain in dotted lines;

1 is the driving shaft. .2 is the driven shaft. 3 is a sprocket wheelmounted on the driving shaft. 4 is the sprocket wheel mounted on thedriven shaft and 5 is the' chain which passes around both wheels. In

the present instance, the chain is traveling in the direction of thearrow, Fig. 2, and the height of the oil in the casing is indicated ate. The height of the oil may vary, but there should be suicient oil inthe casing to submerge the lower section of the chain.

6 is the base section, which can be secured to the frame in any suitablemanner and this base section has a bottom 7 and sides 8 terminatingabout `half-way of the height of the casing, and,in the presentinstance,.on a line with the shafts 1 and 2. The upper edge of the basesection is turned in, as shown, and extending around the bottom of theinterior of the casing is a flange 9 forming a channel for the receptionof the lower end of the upper section 10, also made rectan ar, and whichtits snugly .in the lower section. This construction preventsy the oilfrom'being forced out between the two sections and over the edge of theupper section.

The ange 9 is slightly dared at the upper edge so that the upper sectioncan be readily placed in position. In the present instance, the cover 11is detachable from' the upper section although, in some instances, itmay be made integral therewith, where access to the chain gearing is notdesired.

The cover section v11 has a ange 12 around its edge which extends into achannel at the. upper edge of the upper section formed by a bent plate13 and the body of said upper section. At one end of the cover sectionis af splash plate 1i against which the oil, thrown from the chain',strikes, when the chain is driven in the direction of the arrow, Fig. 2.If it be driven in the opposite direction, then this splash plate isplaced at the opposite end of the casing.

In order to close the opening for the shafts and to allow for adjustmentto take' upxthe wear of the chain 1 3late`sg17y and 22, provide in thecasing an elongated slot 15, which is formed parti in theflower section,asn-at a, and arty in the upper section, as'at 15". 0n t e upper Section1s a plate 16, which spaced from the wall of the casin as shown in'Figs. (l and 5, and mounted etween this plate and the inner wall of thecasing is a rectangular cover plate 17 having an enlar ement 18,preferably of Babbitt metal, which tits the driving.

l opper section of 'the casing is n cover nl shaft in the presentinstance. ln thisenlargen'ient is on oil groove 19 lfor collecting theoil, and communicating with this groove is e passage 20, which leads anyoil that would creep alongr the shaft hach into the casing. it theopposite end of the ctisiinsl is a slot 2l formed pertlg7 in the lowersec-- tion, as at 2in, end partly in the upper sec tion, as at 2lb. slot2lb is in both sides of the casing, es shown in f5 'l'. the presentinstance, the plate 'lo entends substantially the 'lull length ci thecasing and has e slot 16a for the driven sha'et line with the slot 2l inthe casinff @n opposite side the cesi spaced the seine distance fr in ethe plete lo, onl)v this plate :ded side oi the slot for the drivenshaft. ed in the space hetneen the plates t e '9 or vasher, 23, Fig. 9,.vhich hes an enlargenient 2e, surrounding the shaft, and in thisenlarged giortionis an oil groove Q5, which connnunicates with theinterior of the casing through a diagonal pessege Q5, the seme es 'heoil groove in the plete 'h The piet-es "1"? and 23 are looseljv mount inthe casing so that they will accommodate themselves to the two shafts.The plates are a Width than the openings inthe sections ofi the casingsend they prevent the escape of oil from the casing when is splashed h3?the chain running et high speed. ln feet, ell of the lioints of thecasing; are such es to prevent the escape of'oil, which is in motionwhen the drive chain is driven.

ln the bottom of the lower section of the 27, closed hy e phi-g casingis an oil opening 28.. 'lhe cover ll has e suitable handle Q9 rlhealcove construction of the casing not only prevents oil from escapingthrough lechage, but it also prevents dust and lint gaining access tothe chain drive or gearing.

When it is desired to take np the chain, due to Wear, this cen hereadilj,7 accomplished Without disturbing the hon, es the plete l?,

mounted on the driving shaft, is free to slide in the loos.

l claim; i

l. ln a casing for e, drive chain, or gearing, the combination of elower section heving side sind end Walls and recessed for theaccommodation of the shafts; an upper sectionjedanted to t in the low-ersection end also recessed tor the accommodation oil' the shafts, saidupper section extending to a point helenv the line oi' the oil in thelower section.

Q. l'n e casing' for a drive chain, or geering.. theconihination orp alower section havslde and end wells and recessed for the accommodationof the shafts; an upper sec-1 tion to fit in the lower section and elserecessed for the accommodation ot the l Lts, seid upper sectionentending to e i beloof che line of the oil in 'the lower on the lowersection having; en internal we et its hottoin forming an into which thelower edge the opper entends.

The combination in a casing, of e lower v5on having e hottoin and sideend end ls, the si le Walls of said lower section hei cecessed toaccommodate the driving end.

driven shafts end having, near the hottoin, an internal hangs spe. edfrom the side n: ils 'to iorin a recess; an opper section. en-

tending alcove the upper edge of the lower section end haring side Walls,extending down into the recess :termed between the wells oi the lowersection and the bottom ige; end plates mounted on the sha-its and'closing lthe recesses inthe tWo sections of the l casing so es toprevent the escape oil oil 'from the ceasing'.

The combination in a casing for drive chains, or gearing, of a lowersection having side and end Wells and recessed to accommodate theshafts, the upper edge ci the section seing tiered; an upper sectionadapted nt in the lower section and recessed For the accommodation ofthe shafts, the lower edge of the upper section hein tiered, said uppersection extending to a point below the ine oi" oil in the lower section;end cover plates mounted on the shafts and edented to grooves in theupper section.

5. The combination in e casingl drive chains., or gearing, of a lowersection honing an internal flange near its bottom; en opper sectioniitting Within the lower section, the lower edge of the upper sectionextending into the space formed log/'the dange and the lower section; e.Hangs et the upper end of the upper section forming e recess; edetachahle cover plate having e flange extending into the recess et theupper section, the upper section having slots to accommodate the drivingend driven shafts; cover pleitos on the shafts closing seid slots; and esplash plate secured to the detachable cover plete.

B. The combination in a casing for a chain drive. of a lower sectionhaving side Walls,

-. end mills and a bottoni, said lower section haring n dared internaliiange neer its hottoni; an upper section fitting in the lower sectionand extending into the space between the ange emi the side an end Wallsof the lower section, the sides of the upper @ation being slotted forthe accommoation of the two shafts, one of said slots being elongated 5to allow for adjustment; cover plates mounted on the shafts and adaptedto close the slots, said over plates being enlarge/ et the shafts andhaving grooves therein eotiiig as oil traps; and a, recess leading fromeach groove beck to the interior of the casing so 10 that any oiltraveling on the shaft will loe deeeted beck into the interior of thecasing. n'witness whei'eo I ax m siguente. CLES ESS,

